Spring-roller for fireproof blinds.



Nu. 704,545. l Patented lufy I5, |902.4

` W. R. KINNEAR.

.SPRING ROLLER FOR FIREPRUUF BLINDS.

(Application led lJl'n. 3, :1900.1 (No Model.)

,M A 77'0HNEYS.

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UNIrn PATENT OFFICE..

WILLIAM RAYMOND KINNEAR, OF COLUMBUS, OHIO, ASSIGNOR TO THE KINNEAR MANUFACTURING COMPANY, OF COLUMBUS, OI'IIO, A COR- PORATION OF WEST VIRGINIA.

SPRING-ROLLER FOR FIREPROOF BLINDS.

SPECIFICATION forming part of Letters Patent No. 704,546, dated July 15, 1902.

Application filed JannaryS, 1900. Serial No. 229. (No model.)

To @ZZ 1077/0177/ it r11/ty concern:

Be it known that I, WILLIAM RAYMOND KINNEAR, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Spring- Rollers for Fireproof Blinds; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates more especially to rollers for lire-resisting metallic curtains, and has for its object to provide a simple and economical construction that can be put up at small expense and without the aid of skilled andexperienced help.

The invention is embodied in the construction hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a central horizontal sectional view of the roller and the end casings looking down. Fig. 2 is a sectional view taken through the roller vertically, showing also the end casing and .a portion of the channel and its securing devices in elevation. Fig. 3 is a detail showing the outer side of the head of the roller at the left-hand end of Fig. 1. Fig. 4 is a detail perspective of a fraction of the outer tube constituting the drum or barrel of the roller. Fig. is a perspective view of the head in the left-hand end of the roller.

Like characters of reference in the different views designate corresponding parts.

The left-hand head 1 of the drum or roller,

'as seen in Fig. 1, has a hub la, to which is shown to be secured a shaft or sheet-metal tube In the opposite end of this tube is fitted a plug 3, having a shoulder 3a and a stud 3b, the latter engaging non-rotatably a socket 4 in the end casing 4t. On the plug 3 and beyond the shoulder 3 thereof is placed the right-hand head 5 of the drum or roller 5b. This head 5 has an internal web that is bored centrally to fit and permit the turning of the head on the plug. Secured to and between the heads 1 and 5 is a coil-spring 6, the right-hand end of which can be secured in any appropriate manner to the head 5, while the lefthand end is shown to be bent to form a hook G, the shank of which lies in a notch 1C in the periphery of the head 1, the end of the hook entering a hole 1d near the notch. This I construction facilitates the assembling of the parts. The hub of the head 1 is shown to be made with a square socket or opening 1". Secured to the periphery of the head 5 is the sheet-metal. drum or cylinder 5", hereinbefore referred to, that extends over the periphery of the head 1 and incloses the coilspring 6. The left-hand end of the roller, as seen in Fig. 1, is supported by means of a pin 7, that has a thread 7 and squared ends 7b and 7c; Anut S turns on the thread 7a. One end of the pin 7 enters a correspondinglyshaped socket in the left-hand end casing, while the other end enters the square socket or hole 1b in the head 1. Before the roller is hung in its bearings the nut S is turned up toward the end that enters the end casing. This will permit {the insertion of the righthand stud or pin 3" in its socket in the end casing and the horizontal alining of the left-hand pin with its socket. Now upon turning in the proper direction the nut 8 on the thread 7*b the square end 7b will be :moved into its socket in the end casing and the roller thus becomes supported at both ends.

It will be observed that the sheet-metal drum or cylinder 5b, as shown, is fast to the head 5, and thatv the other end of this drum turns freely on the periphery of the head 1. The curtain can be fastened to the drum, as hereinafter described, and rolled up thereon before the roller is placed in its support, a suitable opening in the end casing being provided for the manipulation of the nut 8.

The end casings 4: and 4J are shown to be provided with mouths or slots 10, through which the edges of the curtain pass to the channels 9 in the sides of the window-opening.

The large outer drum or cylinder lis economically formed of twolsheets 11 and 119 of metal bent to semicylindrical form, one of such sheets having along its edges tongues 12 cnt therein andbent outwardly, and the other sheet has slots 12,through which said tongues are passed and bent down to lock the two parts together. When a curtain constructed of metallic slats like those shown in Fig. 5 of IOO the drawings of my Letters Patent of the United States No. 572,014, dated November 24, 1896, a longitudinal half of one slat will be first secured to the drum and the remaining slats added according to the length of the curtain. A convenient mode of doing this is to cut or punch slots, as indicated in Fig. 4, in the said half-slats and placing the same on the tongues between the lapped edges of one joint ofthe cylinder or drum.

It is obvious that the form and arrangement of the parts herein shown and described can be varied without departing from the substance of the invention.

What I claim, and desire to secure by Letters Patent, is

1. A curtain-roller comprising a non-rotatable head, a tube one end of which iits thereon, a plug in the opposite end of said tube, a head. rotatable on said plug, a spring connected to and between said heads,and a drum or cylinder carried by the rotatable head.

2. Acurtain-roller comprising a head, a tube one end of which Iits thereon, a plug having a shoulder in the opposite end of said tube, a head rotatable on said plug beyond said shoulder, a spring secured to and between said head's, and a drum carried by said head.

3. A curtain-roller comprising an inner tube,a shouldered plug in one end of said tube` adapted to engage a seat at one side of the window-opening, ahead turning on said plug, a drum carried thereby, and a head secured to the opposite end of said tube having a prismatic socket, a threaded pin having prismatic ends to engage respectively said socket and a seat at the other side of the window-opening, a nut turning on the thread of said pin, and a spring secured to and between the aforesaid heads, substantially as described.

4. A curtain-roller comprising in combination an inner tube, a plug in one end thereot` adapted to engage a seat at one side of a window or door opening, a head having a prismatic socketin the opposite end of said tube, a threaded pin having a prismatic end to engage said socket and an end to engagea seat at the opposite side of the window or door opening, a nut onsaid pin adapted to bind the tube between the aforesaid plug and head, a head turning on said plug and a drum carried by said head, substantially as described.

5. Acurtain-rollercylinder or drum ofsheet metal formed with secu ring tongues and slots, combined with a metallic Slat or. curtain secured to said cylinder or drum with said tongues, substantially as'described. i

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM RAYMOND KINNEAR. Witnesses:

GEORGE M. FINCKEL, GEORGE W. ALFRED. 

